<template>
	<view>
		<!-- 使用自定义的搜索组件 -->
		<view class="search-box">
		  <my-search @click="gotoSearch"></my-search>
		</view>
		
		<!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000">
			<swiper-item v-for="(item,index) in swiperList" key="index">
				<navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
					<image :src="item.image_src"></image>
				</navigator>
			</swiper-item>
		</swiper>
		
		<!-- 分类区域 -->
		<view class="nav-List">
			<view class="nav-item" v-for="(item, index) in navList" :key="index" @click="navClickHandler(item)">
				<img :src="item.image_src" class="nav-img">
			</view>
		</view>
		
		<!-- 渲染楼层区域 -->
		<view class="floor-list">
			<!-- 楼层item项 -->
			<view class="floor-item" v-for="(item,index) in floorList" :key="index">
				<!-- 楼层标题 -->
				<img :src="item.floor_title.image_src" class="floor-title">
				<!-- 楼层图片区域 -->
				<view class="floor-img-box">
					<!-- 左侧大照片的盒子 -->
					<navigator class="left-img-box" :url="item.product_list[0].url">
						<img :src="item.product_list[0].image_src" :style="{width:item.product_list[0].image_width + 'rpx'}" mode="widthFix">			
					</navigator>
					<!-- 右侧4个照片区域 -->
					<view class="right-img-box">
						<navigator class="right-img-item" v-for="(item2,index2) in item.product_list " :key="index2" v-show="index2 != 0" :url="item2.url">
						 <img :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}">			
					    </navigator>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				//轮播图数据列表 默认是个空数组
				swiperList:[],
				//分类导航的数据列表
				navList:[],
				//楼层区域
				floorList:[]
			};
		},
		onLoad(){
			this.getSwiperList()
			this.getNavList()
			this.getFloorList()
		},
		methods:{
			//获取轮播图数据的方法 
			async getSwiperList(){
				//发起请求
				const {data:res} = await uni.$http.get('/api/public/v1/home/swiperdata')
				console.log(res)
				//假如请求失败
				if(res.meta.status != 200){
					return uni.$showMsg()
				}
				//请求成功 为data中数据赋值
				this.swiperList = res.message
			},
			
			//获取分类导航数据的方法
			async getNavList(){
				const { data:res } = await uni.$http.get('/api/public/v1/home/catitems')
				if(res.meta.status!=200){
					return uni.$showMsg()
				}
				this.navList = res.message
			},
			
			//nav-item 点击事件
			navClickHandler(item){
				//跳转到分类页面
				if(item.name === '分类'){
					uni.switchTab({
						url:'/pages/cate/cate'
					})
				}
			},
			
			//获取楼层区域的数据
			async getFloorList(){
				const { data : res } = await uni.$http.get('/api/public/v1/home/floordata')
				if(res.meta.status != 200 ) return uni.$showMsg()
				
				//通过双层forEach循环，处理URL地址
				res.message.forEach(floor=>{
					floor.product_list.forEach(prod=>{
						prod.url = '/subpkg/good_list/good_list?' + prod.navigator_url.split('?')[1]
					})
				})
				this.floorList = res.message
			},
			gotoSearch() {
			  uni.navigateTo({
			    url: '/subpkg/search/search'
			  })
			},
			
		}
		
	}
</script>

<style lang="scss">
swiper{
	height: 330rpx;
	
	.swiper-item, image{
		width: 100%;
		height: 100%;
	}
}

// 分类导航样式
.nav-List{
	display: flex;
	justify-content: space-around;
	margin: 15px 0;
	
	.nav-img {
		width: 128rpx;
		height: 140rpx;
	}
}

//楼层区域样式
.floor-title{
	height: 60rpx;
	width: 100%;
	display: flex;
}

.right-img-box{
	display: flex;
	flex-wrap: wrap;
	justify-content: space-around;
}
.floor-img-box{
	display: flex;
	padding: 10rpx;
}

.search-box {
  // 设置定位效果为“吸顶”
  position: sticky;
  // 吸顶的“位置”
  top: 0;
  // 提高层级，防止被轮播图覆盖
  z-index: 999;
}
</style>
